边缘效应对大西洋森林自然碎片土壤种子库的影响

IF 0.4 4区生物学 Q4 Agricultural and Biological Sciences

Iheringia Serie Botanica Pub Date : 2017-09-29 DOI:10.21826/2446-8231201772211

F. S. Machado, A. França, R. M. Santos, R. T. Borém, L. Guilherme

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引用次数: 2

摘要

边缘效应被定义为森林碎片从边缘到内部的前几米生物和非生物特征的变化。在人类活动形成的片段中，这一变化增加了丰富度和丰度，同时也改变了边境地区土壤种子库的森林物种结构。本研究表明，在云雾林的自然片段中，丰度和丰富度对边缘到内部的线性关系有正向影响，主要受距离边缘120米和180米的影响。这种影响可能是新植物生长的结果，或者是“先驱者”占领了大片倒下的树木形成的森林空隙。

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Inﬂuence of the edge effect on a soil seed bank of a natural fragment in the Atlantic Forest

The edge effect is defined as the change of biotic and abiotic characteristics in the first meters of a forest fragment from the edge towards its interior. In fragments formed by human activities, this change generates increased richness and abundance, as well as changes in the structure of the forest species of soil seed bank in the border region. This study demonstrates that in natural fragments of cloud forests, the abundance and richness positively influence the linear relation from the edge to interior, mainly by distances of 120 and 180 meters from the edge. This effect can be a result of new plant growth, or ‘pioneer’ occupation in gaps in the forests generated by large fallen trees.

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来源期刊

Iheringia Serie Botanica PLANT SCIENCES-

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Iheringia, Série Botânica is a publication edited by the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, since 1958. The name Iheringia is actually a tribute to Hermann von Ihering (a German researcher who became a Brazilian citizen) and his important studies in the Natural Sciences.The journal has the mission of publishing articles, reviews and original scientific notes that cover diverse areas in Botany, and may be written in Portuguese, Spanish and English. The journal is widely available in both international and national scientific community. The issues are published and distributed twice a year to 118 national institutions and 152 international institutions. The distribution is either free of charge or by exchange. Impac Factor JCR 2014/2015 = 0.263 Qualis CAPES 2015: B 4 (Biodiversity) B1 (Agricultural Science I) B1 (Environment)